This is the only fear that I have. Our dusty Indian conditions can cause edges - especially white ones to pick up dirt quickly. Will need extra care while washing!

Paging Vid6639, Samurai, GTO, Aditya, Jaggu, Eddy, Tsk1979, etc...

They've been using the mugs for a while and can comment better.

While I do have a mug, I am not a tea or coffee drinker, so it barely gets used.

You can also see the pic Vid6639 has posted on the first page. If I'm not mistaken, the first 2 pics were taken yesterday (after more than a year of use) and the last pic was taken when he got the mug on day 1.

If the above was carried out just to test the durability of the mugs then you're correct but if you are using this method to prepare coffee it's wrong.
When the mug looks so good the coffee should smell and taste good too. Read Sam Kapasi's thread on coffee. Loads of info for you to enjoy a cup of coffee.